While taking thyroid hormones, I usually feel progressively better for the first 2 months (losing weight, better metabolism and sleep, energetic and happy, 80-100% wellness) and then just fall down. This has happened to me three times. I took T4 mono and I had up and down weeks, after 2-3 months I just went back to my previous state. And I have taken NDT and felt more stable during those 2 months. Even after upping the dose, I don't feel better.
I don't know what really causes my simptoms of hypo and elevated TSH and I'm afraid this fact prevents me from healing.My thyroid gland is fine on ultrasound, low antibodies, but I'm reacting very well to thyroid hormones at the beginning. At least for the last 5 years my TSH is elevated up to 7.0, I've never seen TSH less than 3.0, usually it is 4 - 6.
I've managed to find sweet (to be honest, not so sweet) spot some months ago while taking combination of T4 and T3 like 33+15, but the T3 component works not ideally for me I prefer more T4. Also sometimes small dose like 5 T3 or 50 T4 works magically and quickly makes me symptom-free, other days I can't feel an effect, maybe just feeling hot after taking 20-30 T3.
What I see from the results is that my body likes to have certain level of fT3=5,5.
Results on T3\T4 combo from last October
TSH 3,5
fT4 14 (12-22)
fT3 5,5 (3,1-6,8)
Results from 2 years ago while taking T4
TSH 1,55
fT4 19 (12-22)
fT3 5,46 (3,1-6,8)
Last results after 5 weeks on 100 mcg of T4
TSH 0,1
fT4 22 (12-22)
fT3 5,6 (3,1-6,8)
Without medications my levels of fT3 are 4,5 or less, depending on circustamces (exercising, diet), my fT4 is midrange. The problem is that despite different T3 levels I can feel same symptoms.
I suppose basing on these results that my HPT axis works OK. But I still can't understand what causes an elevation of TSH. What I have found is that occasionally TSH is little elevated in thyroid type 2 allostasis (like obesity), Addison disease, hypogonadism, also sleep apnea.
Maybe there are other reasons? I saw on forums people with the same pattern - elevated TSH, midrange or even higher fT4 and fT3. They are usually symptomatic, but there is no understanding what causes it and how to treat it.
Thank you